need help with image uploading restriction

[iNko]

hi once again, i got a form that uploads an image, checks  formats and all that.. i need to add the filesize restriction.

something like this:

define ("max_size","20"); //<- 20kb size
$size=filesize($_FILES['image']['tmp_name'])

if ($size > max_size*1024){
echo "too big filesize";
} else {
  //......
}

 

how do i put that code, into this code? :

<?php

$allowedfiletypes = array("jpeg","jpg","gif","png");
$uploadfolder = "uploads/" ;
$thumbnailheight = 100; //in pixels
$thumbnailfolder = $uploadfolder."thumbs/" ;


$action = $_POST['action'];
if ($action == "upload") {
    //echo "<p>Uploading image... " ;

    if(empty($_FILES['uploadimage']['name'])){
        echo '<script type="text/javascript"> {alert("Pasirinkite faila");} </script>';
    } else {
        $uploadfilename = $_FILES['uploadimage']['name'];
        $fileext = strtolower(substr($uploadfilename,strrpos($uploadfilename,".")+1));

        if (!in_array($fileext,$allowedfiletypes)) { 
	echo '<script type="text/javascript"> {alert("Blogas failo tipas");} </script>';
	} else {
            $fulluploadfilename = $uploadfolder.$uploadfilename ;


            if (move_uploaded_file($_FILES['uploadimage']['tmp_name'], $fulluploadfilename)) {
           echo '<script type="text/javascript"> {alert("Failas irasytas");} </script>';
            $im = imagecreatefromjpeg($fulluploadfilename);

                if (!$im) {
				 echo '<script type="text/javascript"> {alert("Nepavyko sugeneruoti thumbnail");} </script>'; 
			} else {
                    $imw = imagesx($im); // uploaded image width
                    $imh = imagesy($im); // uploaded image height
                    $nh = $thumbnailheight; // thumbnail height
                    $nw = round(($nh / $imh) * $imw); //thumnail width
                    $newim = imagecreatetruecolor ($nw, $nh);
                    imagecopyresampled ($newim,$im, 0, 0, 0, 0, $nw, $nh, $imw, $imh) ;
                    $thumbfilename = $thumbnailfolder.$uploadfilename ;
                    imagejpeg($newim, $thumbfilename) or die('<script type="text/javascript"> {alert("Nepavyko issaugoti thumbnail");} </script>');
                }
            } else { 
		echo '<script type="text/javascript"> {alert("Nepavyko issaugoti failo");} </script>'; 
		}
        }
    }

function watermark($original_image,$original_watermark,$destination="")
	{
		$image=imagecreatefromjpeg($original_image);
		list($imagewidth,$imageheight)=getimagesize($original_image);

		$watermark 	= 	imagecreatefrompng($original_watermark); 			
		list($watermarkwidth,$watermarkheight)=getimagesize($original_watermark);

		if($watermarkwidth>$imagewidth || $watermarkheight>$imageheight)
		{
			$water_resize_factor = $imagewidth / $watermarkwidth;
			$new_watermarkwidth  = $watermarkwidth * $water_resize_factor;
			$new_watermarkheight = $watermarkheight * $water_resize_factor;

			$new_watermark = imagecreatetruecolor($new_watermarkwidth , $new_watermarkheight);

			imagealphablending($new_watermark , false);
			imagecopyresampled($new_watermark , $watermark, 0, 0, 0, 0, $new_watermarkwidth, $new_watermarkheight, $watermarkwidth, $watermarkheight);

			$watermarkwidth  = $new_watermarkwidth; 
			$watermarkheight = $new_watermarkheight; 
			$watermark       = $new_watermark;
		}
		$startwidth 	= 	($imagewidth 	- 	$watermarkwidth)  / 2; 
		$startheight 	= 	($imageheight 	- 	$watermarkheight) / 2;

		imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight); 
		if(!empty($destination))
			imagejpeg($image,$destination);
		else 
			imagejpeg($image);
	}	


$original_directory = "uploads/thumbs/";
$watermarked_images = "uploads/thumbs/watermarkedthumbs/";

if ($handle = opendir($original_directory)) 
{
    while (false !== ($file = readdir($handle))) 
    {
    	/*
    		exif_imagetype checks if our file is
    		a .jpg file. See manual for more info
    	*/
    	if(!is_file($original_directory.$file))
    		continue;
        if(exif_imagetype($original_directory.$file)==2)
        {
        	watermark($original_directory.$file,"watermark.png",$watermarked_images.$file);
        	     }
    }
    closedir($handle);
}
}


?>
<form name="newad" method="post" enctype="multipart/form-data"  action="">
<label for="file" id="label">Pasirinkti failą: </label>
<input type="hidden" name="action" value="upload" />
<input type="file" name="uploadimage" id="file">
<input name="Submit" type="submit" value="įkelti" id="submit">
</form>

 

i tried smth like this, but it shows some error ("Warning: filesize() [function.filesize]: stat failed for 1.jpg in")

<?php

/* $allowedfiletypes = array("jpeg","jpg","gif","png");
$uploadfolder = "uploads/" ;
$thumbnailheight = 100; //in pixels
$thumbnailfolder = $uploadfolder."thumbs/" ; */
define ("max_size","20"); 
$size=filesize($_FILES['uploadimage']['name']);

/* $action = $_POST['action'];
if ($action == "upload") {
    //echo "<p>Uploading image... " ;

    if(empty($_FILES['uploadimage']['name'])){
        echo '<script type="text/javascript"> {alert("Pasirinkite faila");} </script>';
    } else {
        $uploadfilename = $_FILES['uploadimage']['name'];
        $fileext = strtolower(substr($uploadfilename,strrpos($uploadfilename,".")+1));

        if (!in_array($fileext,$allowedfiletypes)) { 
	echo '<script type="text/javascript"> {alert("Blogas failo tipas");} </script>';
	} else {
            $fulluploadfilename = $uploadfolder.$uploadfilename ; */


		if ($size > max_size*1024){
			echo '<script type="text/javascript"> {alert("Per didelis failas");} </script>';
		} else {

           /* if (move_uploaded_file($_FILES['uploadimage']['tmp_name'], $fulluploadfilename)) {
           echo '<script type="text/javascript"> {alert("Failas irasytas");} </script>';
            $im = imagecreatefromjpeg($fulluploadfilename);

                if (!$im) {
				 echo '<script type="text/javascript"> {alert("Nepavyko sugeneruoti thumbnail");} </script>'; 
			} else {
                    $imw = imagesx($im); // uploaded image width
                    $imh = imagesy($im); // uploaded image height
                    $nh = $thumbnailheight; // thumbnail height
                    $nw = round(($nh / $imh) * $imw); //thumnail width
                    $newim = imagecreatetruecolor ($nw, $nh);
                    imagecopyresampled ($newim,$im, 0, 0, 0, 0, $nw, $nh, $imw, $imh) ;
                    $thumbfilename = $thumbnailfolder.$uploadfilename ;
                    imagejpeg($newim, $thumbfilename) or die('<script type="text/javascript"> {alert("Nepavyko issaugoti thumbnail");} </script>');
                }
            } else { 
		echo '<script type="text/javascript"> {alert("Nepavyko issaugoti failo");} </script>'; 
		}
        }
    }
}
function watermark($original_image,$original_watermark,$destination="")
	{
		$image=imagecreatefromjpeg($original_image);
		list($imagewidth,$imageheight)=getimagesize($original_image);

		$watermark 	= 	imagecreatefrompng($original_watermark); 			
		list($watermarkwidth,$watermarkheight)=getimagesize($original_watermark);

		if($watermarkwidth>$imagewidth || $watermarkheight>$imageheight)
		{
			$water_resize_factor = $imagewidth / $watermarkwidth;
			$new_watermarkwidth  = $watermarkwidth * $water_resize_factor;
			$new_watermarkheight = $watermarkheight * $water_resize_factor;

			$new_watermark = imagecreatetruecolor($new_watermarkwidth , $new_watermarkheight);

			imagealphablending($new_watermark , false);
			imagecopyresampled($new_watermark , $watermark, 0, 0, 0, 0, $new_watermarkwidth, $new_watermarkheight, $watermarkwidth, $watermarkheight);

			$watermarkwidth  = $new_watermarkwidth; 
			$watermarkheight = $new_watermarkheight; 
			$watermark       = $new_watermark;
		}
		$startwidth 	= 	($imagewidth 	- 	$watermarkwidth)  / 2; 
		$startheight 	= 	($imageheight 	- 	$watermarkheight) / 2;

		imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight); 
		if(!empty($destination))
			imagejpeg($image,$destination);
		else 
			imagejpeg($image);
	}	


$original_directory = "uploads/thumbs/";
$watermarked_images = "uploads/thumbs/watermarkedthumbs/";

if ($handle = opendir($original_directory)) 
{
    while (false !== ($file = readdir($handle))) 
    {
    	/*
    		exif_imagetype checks if our file is
    		a .jpg file. See manual for more info
    	*/ /*
    	if(!is_file($original_directory.$file))
    		continue;
        if(exif_imagetype($original_directory.$file)==2)
        {
        	watermark($original_directory.$file,"watermark.png",$watermarked_images.$file);
        	     }
    }
    closedir($handle);
}
}

*/
?>

 

any ideas?

thx